The present invention relates to a processed platinum product, an antiviral fiber and a home electric appliance, each of which is produced employing any one of a platinum shield technique, a platinum catalyst chemistry technique and a platinum immobilization technique, and which is characterized in that a material of interest is immersed in an aqueous solution of a platinum nanocolloid containing nano-sized platinum microparticles or a mixed solution of the aqueous solution and a processing agent such as an antibacterial/deodorizing agent or an antibacterial/odor-eliminating agent and the resulting product is dried to impregnate the surface of the material with the platinum nanocolloid, thereby imparting at least one of an antibacterial effect, a bacteriostatic effect, a bactericidal effect, a deodorizing effect, an odor-eliminating effect, a water-absorbing/rapid-drying effect, a heat-generating effect, a moisturizing effect, a cooling effect, an ultraviolet-ray-shielding effect, an antiaging function, a function of making the skin beautiful, a function of making the hair beautiful, a health-maintaining function, an antiviral function, a virus-inactivating function and an antifungal function to the material. With respect to the odor-eliminating effect and the antibacterial function, these effects are increased after laundry by the catalytic action of platinum.
